Good morning, folks. If it's good.
I'm a little depressed today, with bittersweet emotion, as we must bid farewell to the Sourcery ROM project:
Team Sourcery Forum • View topic - The Sourcery Conclussion
JBSourcery 5.3 is the LAST
Sourcery ROM, the pinnacle of their efforts. Let's enjoy the heck out of it.
I can't imagine why you couldn't use Clockwork to flash 5.3. In fact, it looks like Team Sourcery is advising against TWRP.